Plumb-level.



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PATBNTEDJNE 25,1907.

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vivi/IA v.APPLIATIOH FILED JUNE 18. 1906.

A TTORNE YS Specification of Letters Patent.

Patented June et, 1907.

'Application led June 18, 1906. Serial No. 322,277.

To all whom t may concern:

Be it known that I, FRANK M. MoLERoY, a. citizen of the United States, resi at Gainesville, in the county of Hall and tate of Georgia, have 'invented' a nfw and useful y Plumb and Level, of which the following is a specification.

., This invention relates to plumbs or levels,

and has for its object to provide improved means for illuminating the level bubble or 'tube thereby to permit the operator toV readily ascertain the .plumb or level of anob'ect yin using the instrument -at "eht or W en workingin dark or poorly lighte places. I

vide a level having .A fin'th'er object of the invention is to proa push-button arranged in one sidethereo and connected with the terminals o'f a battery, the latter being connected in series with an incandescent lamp whereby the several liquid tubesmay be illuminated by depressing the usb-button.

A still further object of t e invention is to gdnerally im rove this class ofdevices so as to'increase t eirV utilit durability and efficiency as well as to re uce the cost of manufacture. i

With these and' other objects in view the invention consists in the construction andv novel combination and arrangement of parts hereinafter fully described, and illustrated in the accompanying drawings, it being un-k derstood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the the" accom anying drawings forming a part of thisV speclcation: Figure 1 is a longitudinal sectional view of a level constructed. in accordance with mv invention. Fig. 2 is a .side elevation of the same. Fig. 3 is a transverse sectional view taken on the line 3.-3 of' Fig. 1. Fie. 4 is a similar view taken 'Similar numerals o reference indicate corresponding parts in all of the figures of the drawings.

, The improved instrument consists of a subs tantlally rectangular body portion 5 pro- .lenga V1 0 ing the chamber an portion 5 and.v covering the opening The walls of the recess 6 are formed with a V-shaped depression in which is seated a re- Hector 10 having a central opening' formed therein for the reception of an incandescent lam 11.

ormed in one end ofthe body portion' 5 is cells of. a battery 13, said chamber being closed by a plate 14 detachably secured to the 'end of -the level so that the cells may be conveniently removed and re-char ed when necessary. Communicating with t e chamber '12 is a longitudinal opening or assage 15 in which are seated wires or con uctors 16- connecting the lamp with the battery 13 and intersecting said passage is a transverse open- 'ig17 extendin throu h one side of the body of the level. T eade in the o 'ening 17 is a housing 18 in which is mounted) ,a ton 19 the ,latter being provided wit contact plates20 and 21`connected in any suitable manner to the terminals 22 ofthe battery circuit so that by de `ressing the push-button 19 the bulb 11 ma e lighted thereby to illuminate the spirit evels and thus permit the operator to ascertain the plumb or level ofany desiredobject. By having the reflector arranged at the to of the level the rays of light will be rele'cte and thus efectuall nate all the spirit tubes or levels whi e by reason of the pushbutton the lamp may be readily lighted or extinguished at will.

From the foregoing description it will be seen that there is provided an extremely simple, inexpensive and efficient device admirably adapted for the attainment of the ends `in view.

Havin thus described the invention what is claims is:

vA leveling instrument comprising a body thereof and provided at its o posits end with ush-butdo wardly and laterally ll'tmi a vtransverse recess the wa s of 'which are f formed with a conical shaped depresslon, a

reliector of less Width than the body portion ing a longitudinal o emng extending dentrallythroughali'e bod) apertureqin the reliector and intersected by a transverse open-- ing, spirit tubes seated within the recess, and

(y portion and 'connectf Y ICKl` l ng the Walls of the depression and proat its apex with an aperture, there.be

arrangedfat righltangles to each other, a bat- 6o a chamber 12 for the reception of one r'more portlon havlng a chamber formed 1n one end tery disposed Within the chamber, a lamp ex` transverse opening and connected with the tending through the aperture in the reflector terminals of the battery circuit for controlfor illuminating the spirit tubes, conductors ling,T the lamp. disposed within the longitudinal opening and In testimony that l cla-im the foregoing as 5 connecting the lamp with the battery, transmy own, I have hereto al-lxcd my signature r 5 parent plates disposed on opposite sides of in the presence of two witnesses. the body ortion and bearingyagainst the re- I FRANK M. MCLEROY. leotor to "orm closures for the tube-receiving VVit-nesses: recess7 clamping rings engaging the trenspar- PAUL REYNOLDS, ro ent plates, and a push button seated in the J. B. MARTXN. 

